<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
          </el-breadcrumb>
          <!-- 卡片视图区域 -->
          <el-card>
            <!-- echarts准备一个具备大小（宽高）的Dom -->
            <div id="main" style="width: 600px;height:400px;"></div>
          </el-card>
    </div>
</template>

<script>
// 2，引入
import * as echarts from 'echarts'
import _ from 'lodash'
export default {


    data() {
        return {
            // 需要合并的数据
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        };
    },

  async mounted() {
    // 3，基于准备好的dom，初始化echarts实例化
        var myChart = echarts.init(document.getElementById('main'));

        // 4，发起请求
       const{data:res} = await this.$http.get('reports/type/1')
       if(res.meta.status !==200){
        return this.$message.error('获取折线图失败！')
       }
    //    4，准备数据和配置项目
    const result =_.merge(res.data,this.options)
     
    //  5， 展示数据
      myChart.setOption(result);

    },

    methods: {
        
    },
};
</script>

<style scoped>

</style>